package cn.jobstart.common;

import java.security.MessageDigest;

public final class MD5 {
    public static final String enCode(String s) {
        char[] hexDigits = {'0', '1', '2', '3', '4',
                '5', '6', '7', '8', '9',
                'a', 'b', 'c', 'd', 'e', 'f'};
        try {
            byte[] btInput = s.getBytes();
            MessageDigest mdInst = MessageDigest.getInstance("MD5");
            mdInst.update(btInput);
            byte[] md = mdInst.digest();
            int j = md.length;
            char[] str = new char[j * 2];
            int k = 0;
            for (int i = 0; i < j; i++) {
                byte byte0 = md[i];
                str[(k++)] = hexDigits[(byte0 >>> 4 & 0xF)];
                str[(k++)] = hexDigits[(byte0 & 0xF)];
            }
            return new String(str);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    public static void main(String[] args) {
        System.out.print(enCode("123456"));
    }
}

